media: verisilicon: Avoid G2 bus error while decoding H.264 and HEVC
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.160, 6.12.114, 6.18.57, 6.19.6
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: media: verisilicon: Avoid G2 bus error while decoding H.264 and HEVC For the i.MX8MQ platform, there is a hardware limitation: the g1 VPU and g2 VPU cannot decode simultaneously; otherwise, it will cause below bus error and produce corrupted pictures, even potentially lead to system hang. [ 110.527986] hantro-vpu 38310000.video-codec: frame decode timed out. [ 110.583517] hantro-vpu 38310000.video-codec: bus error detected. Therefore, it is necessary to ensure that g1 and g2 operate alternately. This allows for successful multi-instance decoding of H.264 and HEVC. To achieve this, g1 and g2 share the same v4l2_m2m_dev, and then the v4l2_m2m_dev can handle the scheduling.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c · fixed in f988fbf0536b42f6a05ccc1ac709d60236ec1aa6; From cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c · fixed in f2efc1e8ab65bdb9b892af132887323e4df92f02; From cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c · fixed in 5133ef7c893c2c3aee7dd12503dc480de9dbfbb5; From cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c · fixed in 286d629d10640bc22f3bf46aa4f356eb7975e862; From cb5dd5a0fa518dff14ff2b90837c3c8f98f4dd5c · fixed in e0203ddf9af7c8e170e1e99ce83b4dc07f0cd765
- Linux Linux
5.14
- KernelLinux
From 5.14.0 · fixed in 6.6.160; From 6.7.0 · fixed in 6.12.114; From 6.13.0 · fixed in 6.18.57; From 6.19.0 · fixed in 6.19.6